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Finding the Fourth Proportional to 16,659.40, 24,974.70 and 10,078.60

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Solution

The fourth proportional to 16,659.40, 24,974.70 and 10,078.60 is: 15,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.40 : 24,974.70 = 10,078.60 : x
  2. Step 2: Convert to fraction form
    16,659.40/24,974.70 = 10,078.60/x
  3. Step 3: Cross multiply
    16,659.40x = 24,974.70 × 10,078.60
  4. Step 4: Simplify right side
    16,659.40x = 251,710,011.42
  5. Step 5: Solve for x
    x = 251,710,011.42/16,659.40
  6. Step 6: Final answer
    x = 15,109.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.